I have at last got around to replying to all those who contributed - I feel humbled!
Naturally I would not expect the usage of everyday words in all answers, if so I'd be doing the Quick Crossword but I think the reversed "set" in "tagetes" was vague!
All the other answers now make sense - I'll have to eat more fish!
I'm glad the "HE" explosive which coincided with "His Excellency" also confused someone else.
Thank you all for yourt time and patience - now see my next (Thankfully shorter) thread.